Orion’s 9mm GiantView 100° Ultra-Wide eyepiece offers a visual experience you’ll never forget with its astounding 100° apparent field of view. That’s nearly twice the apparent field of our popular Sirius Plossl eyepiece line! Offered at a fraction of the price of similar models, the 9mm Orion GiantView telescope eyepiece delivers huge, pristine views of the cosmos.

With its design consisting of 6 fully multi-coated lens-elements arranged in 4 groups, the Orion 9mm GiantView eyepiece will amaze you with exquisite views through a telescope. The GiantView design yields excellent correction, so you can observe objects in detail even if they are near the edge of the colossal 100° apparent field of view. Substantial 13mm eye relief makes the 9mm GiantView a comfortable experience to use.

Its relatively light weight of 15.2 oz. means you won’t have to re-balance your telescope every time you want to use the 9mm 100° eyepiece, as you would when using similar, extraordinarily heavy ultra-wide angle eyepieces. The 9mm GiantView features a removable 2” barrel, so it can be used in both 2” and 1.25” telescope focusers and diagonals.

You can easily enhance the ultra-wide views with either 2” or 1.25” Orion filters (sold separately) since the 9mm GiantView barrels are threaded for use with like-sized eyepiece filters.

Our 9mm GiantView 100° Ultra-Wide telescope eyepiece will show you an amazing amount of sky with well corrected field edges at an affordable price that belies its excellent quality.

Warranty

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-676-1343.

Warning

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Design

Different eyepiece designs allow for a wide range of features, depending on the needs of the observer. Orthoscopic and Plossl designs can provide a great quality image with a standard field of view, but may be difficult to use at higher powers while wearing glasses due to the short eye-relief. Long eye-relief designs have more elements and can be more expensive, but work very well with glasses, even at higher powers. Wide angle designs provide a larger view of the sky at the same power as a standard eyepiece. More complex designs can combine all these attributes together in a single eyepiece.

Apparent field of view

The edge-to-edge angular diameter of the image displayed in a binocular as seen by the eyes of the observer. It is an inherent specification for a given binocular design. The "angular diameter" of an object is defined as the angle an object makes (subtends) as seen by an observer.

Eye relief

The distance, measured in millimeters, between the observer's eye and the eyepiece lens in which the entire field of view remains visible. Eye relief varies with the optical design but generally increases with decreasing magnification. Long eye relief is advantageous for observers who wear glasses, as they don't have to put their eye directly on the eyepiece to see the entire field of view, nor do they have to remove their eyewear.

Coatings

Binocular lenses and prisms are often coated with anti-reflective material to minimize light loss as light travels through the multiple optical surfaces of a typical binocular. Coatings help maximize the amount of light transmitted through each glass surface of a binocular, so as much light as possible reaches the observer's eyes to provide a bright and sharp image.

Good lenses are at least "fully coated," with a single layer of magnesium fluoride coating applied to each air-to-glass lens surface. Multiple layers of coatings are even more effective; the term "multi-coated" means one or more air-to-glass lens surface has multiple coatings. "Fully multi-coated" optics are even better, meaning all lens surfaces have multiple layers of anti-reflective coatings applied for maximum light transmission and optimal image quality.

Parfocal

Barrel security recess

The barrel security recess is a shallow groove or depression cut into the 1.25" or 2" barrel of the eyepiece. In the event the thumb screw holding the eyepiece in the focuser becomes slightly loose, the eyepiece will not fall out because the tip of the thumb screw will catch on the lip of the security groove.

Warranty

This warranty gives you specific legal rights. It is not intended to remove or restrict your other legal rights under applicable local consumer law; your state or national statutory consumer rights governing the sale of consumer goods remain fully applicable.

One year

Shipping Info

Orders received by noon Pacific Time for in-stock item the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

SHIPPING RESTRICTIONS APPLY FOR THIS PRODUCT

This product is available to ship Standard delivery within the 50 US states, APO/DPO/FPO addresses and US territories/protectorates. Delivery is not available to Canada.

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